symfony 2.3 form getData doesn't work in subforms collections

Question

I have a form which contains a collection. So I have:

/* my type */
public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
             


        

Answer 1

In my case did not need the data necessarily when building the form, but when building the view (later). Just next to the buildForm function of my subform type class, I added the buildView function:

namespace AppBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Form\FormView;
use Symfony\Component\Form\FormInterface;

class MyType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        // ...
    }

    public function buildView(FormView $view, FormInterface $form, array $options)
    {
        $data = $form->getData();
        $view->vars['name'] = $data->objproporwhatever;
    }

    // ...
}

Because buildView is called later, the data is available there. In this example I used it to change the label of the form row of each item in the collection. Check out the list of possible vars.